Lightning-arrester.



R. P. JACKSON.

LIGflTNING ARBESTER. APPLICATION man SEPT. 6. 1910.

1,215,540. I Patented F6b.13, 1917.

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w I f J WITNESSES: p mva TOR AW -7 M ATTORNEY v Ii-'NITED STATES PATFENT OFFICE.

EA! 3:. Q'AGKSGN, OF EDGEWOOD PARK, PENNSYLVANIA, ASSIGNOB DO WESTINGHOUSE ELEGTRIEJ AND MANUFACTURING COMPANY A CORPORATION 01 PENNSYLVANIA.

LIGHTNING-ARRESTER.

- Specification of Letters Patent.

' l Patented Feb. 13, 1917.

Application flled scptember 8, 1910. Serial No. 580,765.

The lightning arrester which embodies my invent-ion adapted for high-voltage servioz and is simple in construction and capable being assembled at the generatstation, or other locality, where it IS tO he used, the'parts which are necessarily supplied by the manufacturer being of nummum bulkand weight, and the parts which are supplied by the user being readily obtainable and such. as are ordinarily kept on hand by station operators.

My lightning arrester embodies the prin-' v iples set in Patent No. 894,150, granted July 21. 1908 to Westinghouse Electric- 64 Manufacturing Co, upon an application filed December 4:, 1905 by R. B'. Ingram.

Figure l of: the accompanying drawing front view, and Fig. 2 is a side elevation, of a lightning arrester constructed 1n accordance with my invention. l

rying to the drawings, the lightning arr-ester here shown comprisesa pillar or column 1, whi h is composed ofa' set of cone hloclts of special composition, as hereinafter pointed out, and a pole or post on which a horn-gap lightning arrester is mounted.

The pillar or column 1 comprises a base i.- a plurality of concrete blocks 5, and shields (i'oi metal which are located'between i the blocks and extend outwardly and down-.

.The side or shunt protective devices which constitute'horn-gap members 10 are clearly shown in Fig. l of the drawings and constitute a series of air gaps which are shunted by the resistance columnl.

The concrete blocks are preferably structed ofequal parts of cement, sand and 7 red oxid of iron, in. Order that suitable resistance roperties may be obtained.-

The concrete blocks may, or course, be 5 very easily constructed and may be formed at the locality where the device is to be used. By this means, the weight of the parts which are necessarily suppliedby the manufacturer is relatively light. i

'70 Structural modifications may be effected v within the spirit and scope of my invention.

I claim as my invention:

1. A lightning arrester comprising a umn of alternately disposed metal plates and high resistance'blocks, and horn-shaped arcing members respectively connected to the metalplatcs and arranged in pairs to provide our gaps in shunt relation to the 39 blocks between the plates to which they are connected.

2. A lightning alrrester comprising a column of alternately disposed metal platesand high resistance blocks, and horn-shaped a5 arcing members respectively connected to the metal plates and arranged in 'p'airs to provide air gaps in shunt relation to the blocks between the plates to which they are connected, adjacent pairs of arcing mom- 9o hers being displaced with respect to each other. 3. A lightning arrester comprising a column of high resistance blocks, metalplates between the blocks andv thereby spaced apart a;

sufficiently to substantially prevent the occurrence-0f arcs between them, and berm shaped arcing-members respectivelyoofl Q nected to the metal plates and arranged in pairs'to provide air gaps in shunt tothe 100 blocks between the plates to which they are connected.

4. A lightning arrester comprising-look umn of high resistance blocks, metal plates between the blocks and thereby'spaced apart 105 sufliciently to substantially prevent the 0ocurrence of arcs between them, and hornshaped arcing members respectively connected to the metal plates and arranged in pairs to provide air gaps in shunt to the 110 m ike me a revide and high resistance %1ocks,- and horn-gap {LI'CHUQ members respeeelvely connected to xhe meta'i plates and arranged in pairs to provide an: gaps 1n shunt relatlon to the felleeke between the plates 130 which they are eemleeted, said metal plates being provided with euewerdly and downwerdlyextending 1 pemeoets.

qes to constitute a series of superposed- In eestimony whereof, I have hereunte subscribed my name this 18th day of Ali gust, 1910, I P. JACKSON.

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